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High · 8.1 CVE-2026-82287 EUVD-2026-67818GHSA-phf4-3733-pwc6

Rybbit Reflects Any Origin in CORS Responses While Allowing Credentials

Published Aug 28, 2026 · Updated Sep 24, 2026 · Assigned by VulnCheck

Description

Rybbit before 2.7.0 contains a CORS misconfiguration vulnerability that allows attackers to bypass origin restrictions by reflecting any request origin in Access-Control-Allow-Origin responses while credentials are enabled. Attackers can issue credentialed cross-origin requests from any website to read analytics data, account information, and perform authenticated state-changing operations as the victim user.

Affected products

VendorProductAffectedFixed
rybbit-io rybbit < 2.7.0 2.7.0

References